[llvm] r178459 - X86TTI: Add accurate costs for itofp operations, based on the actual instruction counts.
Benjamin Kramer
benny.kra at googlemail.com
Mon Apr 1 03:23:49 PDT 2013
Author: d0k
Date: Mon Apr 1 05:23:49 2013
New Revision: 178459
URL: http://llvm.org/viewvc/llvm-project?rev=178459&view=rev
Log:
X86TTI: Add accurate costs for itofp operations, based on the actual instruction counts.
Modified:
llvm/trunk/lib/Target/X86/X86TargetTransformInfo.cpp
llvm/trunk/test/Analysis/CostModel/X86/cast.ll
llvm/trunk/test/Transforms/LoopVectorize/X86/conversion-cost.ll
Modified: llvm/trunk/lib/Target/X86/X86TargetTransformInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86TargetTransformInfo.cpp?rev=178459&r1=178458&r2=178459&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86TargetTransformInfo.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86TargetTransformInfo.cpp Mon Apr 1 05:23:49 2013
@@ -271,10 +271,33 @@ unsigned X86TTI::getCastInstrCost(unsign
{ ISD::ZERO_EXTEND, MVT::v4i64, MVT::v4i32, 1 },
{ ISD::TRUNCATE, MVT::v4i32, MVT::v4i64, 1 },
{ ISD::TRUNCATE, MVT::v8i16, MVT::v8i32, 1 },
- { ISD::SINT_TO_FP, MVT::v8f32, MVT::v8i8, 1 },
- { ISD::SINT_TO_FP, MVT::v4f32, MVT::v4i8, 1 },
- { ISD::UINT_TO_FP, MVT::v8f32, MVT::v8i8, 1 },
- { ISD::UINT_TO_FP, MVT::v4f32, MVT::v4i8, 1 },
+
+ { ISD::SINT_TO_FP, MVT::v8f32, MVT::v8i1, 8 },
+ { ISD::SINT_TO_FP, MVT::v8f32, MVT::v8i8, 8 },
+ { ISD::SINT_TO_FP, MVT::v8f32, MVT::v8i16, 5 },
+ { ISD::SINT_TO_FP, MVT::v8f32, MVT::v8i32, 1 },
+ { ISD::SINT_TO_FP, MVT::v4f32, MVT::v4i1, 3 },
+ { ISD::SINT_TO_FP, MVT::v4f32, MVT::v4i8, 3 },
+ { ISD::SINT_TO_FP, MVT::v4f32, MVT::v4i16, 3 },
+ { ISD::SINT_TO_FP, MVT::v4f32, MVT::v4i32, 1 },
+ { ISD::SINT_TO_FP, MVT::v4f64, MVT::v4i1, 3 },
+ { ISD::SINT_TO_FP, MVT::v4f64, MVT::v4i8, 3 },
+ { ISD::SINT_TO_FP, MVT::v4f64, MVT::v4i16, 3 },
+ { ISD::SINT_TO_FP, MVT::v4f64, MVT::v4i32, 1 },
+
+ { ISD::UINT_TO_FP, MVT::v8f32, MVT::v8i1, 6 },
+ { ISD::UINT_TO_FP, MVT::v8f32, MVT::v8i8, 5 },
+ { ISD::UINT_TO_FP, MVT::v8f32, MVT::v8i16, 5 },
+ { ISD::UINT_TO_FP, MVT::v8f32, MVT::v8i32, 9 },
+ { ISD::UINT_TO_FP, MVT::v4f32, MVT::v4i1, 7 },
+ { ISD::UINT_TO_FP, MVT::v4f32, MVT::v4i8, 2 },
+ { ISD::UINT_TO_FP, MVT::v4f32, MVT::v4i16, 2 },
+ { ISD::UINT_TO_FP, MVT::v4f32, MVT::v4i32, 6 },
+ { ISD::UINT_TO_FP, MVT::v4f64, MVT::v4i1, 7 },
+ { ISD::UINT_TO_FP, MVT::v4f64, MVT::v4i8, 2 },
+ { ISD::UINT_TO_FP, MVT::v4f64, MVT::v4i16, 2 },
+ { ISD::UINT_TO_FP, MVT::v4f64, MVT::v4i32, 6 },
+
{ ISD::FP_TO_SINT, MVT::v8i8, MVT::v8f32, 1 },
{ ISD::FP_TO_SINT, MVT::v4i8, MVT::v4f32, 1 },
{ ISD::ZERO_EXTEND, MVT::v8i32, MVT::v8i1, 6 },
Modified: llvm/trunk/test/Analysis/CostModel/X86/cast.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/cast.ll?rev=178459&r1=178458&r2=178459&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/cast.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/cast.ll Mon Apr 1 05:23:49 2013
@@ -77,3 +77,78 @@ define i32 @masks4(<4 x i1> %in) {
ret i32 undef
}
+define void @sitofp4(<4 x i1> %a, <4 x i8> %b, <4 x i16> %c, <4 x i32> %d) {
+ ; CHECK: cost of 3 {{.*}} sitofp
+ %A1 = sitofp <4 x i1> %a to <4 x float>
+ ; CHECK: cost of 3 {{.*}} sitofp
+ %A2 = sitofp <4 x i1> %a to <4 x double>
+
+ ; CHECK: cost of 3 {{.*}} sitofp
+ %B1 = sitofp <4 x i8> %b to <4 x float>
+ ; CHECK: cost of 3 {{.*}} sitofp
+ %B2 = sitofp <4 x i8> %b to <4 x double>
+
+ ; CHECK: cost of 3 {{.*}} sitofp
+ %C1 = sitofp <4 x i16> %c to <4 x float>
+ ; CHECK: cost of 3 {{.*}} sitofp
+ %C2 = sitofp <4 x i16> %c to <4 x double>
+
+ ; CHECK: cost of 1 {{.*}} sitofp
+ %D1 = sitofp <4 x i32> %d to <4 x float>
+ ; CHECK: cost of 1 {{.*}} sitofp
+ %D2 = sitofp <4 x i32> %d to <4 x double>
+ ret void
+}
+
+define void @sitofp8(<8 x i1> %a, <8 x i8> %b, <8 x i16> %c, <8 x i32> %d) {
+ ; CHECK: cost of 8 {{.*}} sitofp
+ %A1 = sitofp <8 x i1> %a to <8 x float>
+
+ ; CHECK: cost of 8 {{.*}} sitofp
+ %B1 = sitofp <8 x i8> %b to <8 x float>
+
+ ; CHECK: cost of 5 {{.*}} sitofp
+ %C1 = sitofp <8 x i16> %c to <8 x float>
+
+ ; CHECK: cost of 1 {{.*}} sitofp
+ %D1 = sitofp <8 x i32> %d to <8 x float>
+ ret void
+}
+
+define void @uitofp4(<4 x i1> %a, <4 x i8> %b, <4 x i16> %c, <4 x i32> %d) {
+ ; CHECK: cost of 7 {{.*}} uitofp
+ %A1 = uitofp <4 x i1> %a to <4 x float>
+ ; CHECK: cost of 7 {{.*}} uitofp
+ %A2 = uitofp <4 x i1> %a to <4 x double>
+
+ ; CHECK: cost of 2 {{.*}} uitofp
+ %B1 = uitofp <4 x i8> %b to <4 x float>
+ ; CHECK: cost of 2 {{.*}} uitofp
+ %B2 = uitofp <4 x i8> %b to <4 x double>
+
+ ; CHECK: cost of 2 {{.*}} uitofp
+ %C1 = uitofp <4 x i16> %c to <4 x float>
+ ; CHECK: cost of 2 {{.*}} uitofp
+ %C2 = uitofp <4 x i16> %c to <4 x double>
+
+ ; CHECK: cost of 6 {{.*}} uitofp
+ %D1 = uitofp <4 x i32> %d to <4 x float>
+ ; CHECK: cost of 6 {{.*}} uitofp
+ %D2 = uitofp <4 x i32> %d to <4 x double>
+ ret void
+}
+
+define void @uitofp8(<8 x i1> %a, <8 x i8> %b, <8 x i16> %c, <8 x i32> %d) {
+ ; CHECK: cost of 6 {{.*}} uitofp
+ %A1 = uitofp <8 x i1> %a to <8 x float>
+
+ ; CHECK: cost of 5 {{.*}} uitofp
+ %B1 = uitofp <8 x i8> %b to <8 x float>
+
+ ; CHECK: cost of 5 {{.*}} uitofp
+ %C1 = uitofp <8 x i16> %c to <8 x float>
+
+ ; CHECK: cost of 9 {{.*}} uitofp
+ %D1 = uitofp <8 x i32> %d to <8 x float>
+ ret void
+}
Modified: llvm/trunk/test/Transforms/LoopVectorize/X86/conversion-cost.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/LoopVectorize/X86/conversion-cost.ll?rev=178459&r1=178458&r2=178459&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/LoopVectorize/X86/conversion-cost.ll (original)
+++ llvm/trunk/test/Transforms/LoopVectorize/X86/conversion-cost.ll Mon Apr 1 05:23:49 2013
@@ -33,11 +33,10 @@ define i32 @conversion_cost2(i32 %n, i8*
.lr.ph: ; preds = %0, %.lr.ph
%indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 9, %0 ]
- %2 = add nsw i64 %indvars.iv, 3
- %3 = trunc i64 %2 to i32
- %4 = sitofp i32 %3 to float
- %5 = getelementptr inbounds float* %B, i64 %indvars.iv
- store float %4, float* %5, align 4
+ %add = add nsw i64 %indvars.iv, 3
+ %tofp = sitofp i64 %add to float
+ %gep = getelementptr inbounds float* %B, i64 %indvars.iv
+ store float %tofp, float* %gep, align 4
%indvars.iv.next = add i64 %indvars.iv, 1
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
%exitcond = icmp eq i32 %lftr.wideiv, %n
More information about the llvm-commits
mailing list